speed guy wrote:
"Experience" was only half the battle for Muir... The other was being physically capable of going and holding that pace, which as that other poster correctly stated the US women unfortunately aren't
True this!
In Muir's case, experience also taught her not too go too hard to fast. When she was younger, she used to try to win every race from the gun. That's why she didn't medal until last year. (Just look at the Rio Olympics.)